Courier Mail Server Remote Denial Of Service Vulnerability

BID:14135

Info

Courier Mail Server Remote Denial Of Service Vulnerability

Bugtraq ID: 14135
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2005-2151
Remote: Yes
Local: No
Published: Jul 04 2005 12:00AM
Updated: Jul 12 2009 04:06PM
Credit: This issue was announced by the vendor.
Vulnerable: Ubuntu Ubuntu Linux 5.0 4 powerpc
Ubuntu Ubuntu Linux 5.0 4 i386
Ubuntu Ubuntu Linux 5.0 4 amd64
Double Precision Incorporated Courier Mail Server 0.50
Double Precision Incorporated Courier Mail Server 0.47
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Not Vulnerable: Double Precision Incorporated Courier Mail Server 0.50.1

Discussion

Courier Mail Server Remote Denial Of Service Vulnerability

Courier Mail Server is prone to a remote denial of service vulnerability. The issue exists in the 'spf.c' source file. The vulnerable functionality deals with the processing of Sender Policy Framework (SPF) data.

A remote attacker may potentially trigger a malicious SPF record lookup that will result in a service crash, effectively denying service for legitimate users.

Exploit / POC

Courier Mail Server Remote Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Courier Mail Server Remote Denial Of Service Vulnerability

Solution:
The vendor has released an update to address this issue.

Debian GNU/Linux has released advisory DSA 784-1, along with fixes to address this issue. Please see the referenced advisory for further information.

Ubuntu has released advisory USN-174-1 to address this issue. Please see the referenced advisory for more information.


Double Precision Incorporated Courier Mail Server 0.47

Double Precision Incorporated Courier Mail Server 0.50

References

Courier Mail Server Remote Denial Of Service Vulnerability

References:

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